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Finding the Fourth Proportional to 55,893.59, 83,848.68 and 18,457.61

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Solution

The fourth proportional to 55,893.59, 83,848.68 and 18,457.61 is: 27,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,893.59 : 83,848.68 = 18,457.61 : x
  2. Step 2: Convert to fraction form
    55,893.59/83,848.68 = 18,457.61/x
  3. Step 3: Cross multiply
    55,893.59x = 83,848.68 × 18,457.61
  4. Step 4: Simplify right side
    55,893.59x = 1,547,645,815.21
  5. Step 5: Solve for x
    x = 1,547,645,815.21/55,893.59
  6. Step 6: Final answer
    x = 27,689.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.